Provided by: coreutils_8.5-1ubuntu6_i386 bug


       sha1sum - compute and check SHA1 message digest


       sha1sum [OPTION]... [FILE]...


       Print or check SHA1 (160-bit) checksums.  With no FILE, or when FILE is
       -, read standard input.

       -b, --binary
              read in binary mode

       -c, --check
              read SHA1 sums from the FILEs and check them

       -t, --text
              read in text mode (default)

   The following three options are useful only when verifying checksums:
              don't print OK for each successfully verified file

              don't output anything, status code shows success

       -w, --warn
              warn about improperly formatted checksum lines

       --help display this help and exit

              output version information and exit

       The sums are computed as described in FIPS-180-1.  When  checking,  the
       input  should  be a former output of this program.  The default mode is
       to print a line with checksum, a character  indicating  type  (`*'  for
       binary, ` ' for text), and name for each FILE.


       Written by Ulrich Drepper, Scott Miller, and David Madore.


       Report sha1sum bugs to
       GNU coreutils home page: <>
       General help using GNU software: <>
       Report           sha1sum          translation          bugs          to


       Copyright (C) 2010 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <>.
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.


       The full documentation for sha1sum is maintained as a  Texinfo  manual.
       If  the  info and sha1sum programs are properly installed at your site,
       the command

              info coreutils 'sha1sum invocation'

       should give you access to the complete manual.